303 s start at 125 and go up from there depending on model and how much its been sportered
Two years ago a gunsmith and I had a cut down Lee Enfield on our table at the gun show. He had gone over it, replaced some internal parts and even the stock.
We had $120 on it. As time went on, we lowered the price, until, before closing time the second day, I put $70 on the tag and it sold.
Last year a friend gave me a similar rifle to sell at the gun show. I had the same gunsmith go over it, make sure all was well, we cleaned it up and put it on his table at the show, with a $75 tag on it.
It never sold, throughout the entire show!
What was complicating things was the friend who gave it to me to sell, thought it was worth a couple hundred dollars. That was why I had it on the gunsmith's table, to prove to my friend what it was really worth.
It's the same old story. So easy to say what something, in this case a certain rifle, is worth, but what it is worth is what someone will pay for it, after it is well advertised on the market.